Bellows Couplings BK

Please select a Product:
MODEL SERIES BK BK1 BK2, BKC and BKL BKH BK3 BK4 BK5 BK6 BK7 BK8 BKM
General  | technical information | 2D and 3D download

Bellows Coupling Model BK7
with expanding shaft from 15-300 Nm

  • for hollow shaft mounting
  • suited for space restricted installations
  • easy mounting

Design:
An expandable male shaft incorporated with our Bellows coupling with clamping hub.

Temperature range:
-30 to +120° C (3.6 F to 270)

Backlash:
Absolutely backlash-free.

Service life:
R+W Bellows Couplings BK7 are maintenance-free and have an infinite life, if the tolerances are not exceeded.

Fit tolerance:
On the hub/shaft connection 0.01 to 0.05 mm.

Material:
Bellows are made from flexible, high-grade stainless steel. The hubs are made from aluminium.

Non-standard application:
Custom designs with varied tolerances, keyways, non-standard material and bellows are available upon request.

Technical Data:

  • rated torque from 15 - 300 Nm
  • shaft diameter from 8 - 60 mm
 Metal Bellows Coupling

Properties of Bellows Coupling Model BK7:

  • compact design, conserves space while
  • saving cost
  • backlash-free and torsionally rigid
  • low moment of inertia
  • compensation of misalignment

This Bellows Coupling is available as ATEX version
for applications in explosive atmosphere.

Possible applications for Bellows Coupling BK7:

Applications of Metal Bellow Couplings
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